Wobo Industrial Equipment Co., Ltd.
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Product Overview
The UV flue gas analyzer (ultra-low range) is a high-sensitivity online monitoring instrument designed for ultra-low emission applications.
Based on ultraviolet differential optical absorption spectroscopy (UV-DOAS), it enables real-time measurement of key flue gas components such as SO₂, NO, NO₂, and O₂.
With a multi-pass gas cell design and optimized absorption peak algorithms, the analyzer offers excellent detection limits, strong stability, and high resistance to interference. It is ideal for precise monitoring and control of industrial emissions.
Working Principle
The analyzer operates on the UV-DOAS principle, measuring gas concentrations based on their absorption of specific ultraviolet wavelengths.
A multi-pass gas cell extends the optical path length, increasing the absorption signal and improving detection sensitivity. Optimized absorption peak selection and interference compensation algorithms reduce cross-interference between different gas components.
In addition, a temperature-controlled system minimizes the impact of ambient temperature fluctuations, ensuring stable and reliable measurement results.
Key Features
- High Accuracy & Fast Response: Based on UV-DOAS technology, with linearity error ≤ 2% F.S. and response time (T90) ≤ 30 seconds.
- Ultra-Low Detection Capability: Multi-pass gas cell design significantly enhances sensitivity, suitable for very low concentration monitoring.
- Stable Operation: Temperature control system ensures stable light source performance and long service life.
- Advanced Interference Compensation: Reduces cross-interference among multiple gas components, improving measurement accuracy.
- Flexible Communication: Supports RS232 and RS485 interfaces for environmental data acquisition and system integration.
- Dust Protection: Equipped with a dust filtration unit, suitable for harsh industrial environments and long-term stable operation.
Applications
- Environmental Monitoring: Ideal for ultra-low emission monitoring in power plants, chemical plants, cement plants, and other industries to ensure regulatory compliance.
- Industrial Emission Control: Enables real-time monitoring and precise management of pollutant emissions.
- Research & Laboratories: Suitable for flue gas analysis and related research in universities and research institutions.
| Parameter | Description |
| Measurement Components | SO₂, NO, NO₂, O₂ |
| Measurement Principle | SO₂/NO/NO₂: UV-DOAS; O₂: ECD |
| Measurement Range | SO₂/NO/NO₂：(0~100)mg/m³；O₂：(0~25)%(optional range) |
| Response Time | T90≤30s |
| Repeatability | ≤2% |
| Stability | ≤±2%F.S./24h; ≤±2.5%F.S./7d |
| Relative Humidity | (5~85)% |
| Atmospheric Pressure | (86~108)kPa |
| Linearity Error | ≤±2%F.S. |
| Sample Gas Requirements | No droplets, dust filtration (filter accuracy <1um) |
| Communication Protocol | Modbus protocol or customized per customer request |
| Electrical Parameters | |
| Communication Interface | RS-485/RS-232 |
| Power Supply | Supply Voltage: AC220V, 50Hz; Power Consumption: Max 200W |
